git.sesse.net Git - casparcg/blob - modules/ffmpeg/producer/frame_muxer.cpp

   1 #include "../StdAfx.h"\r
   2 \r
   3 #include "frame_muxer.h"\r
   4 \r
   5 #include "filter/filter.h"\r
   6 \r
   7 #include "util.h"\r
   8 \r
   9 #include <core/producer/frame_producer.h>\r
  10 #include <core/producer/frame/basic_frame.h>\r
  11 #include <core/producer/frame/frame_transform.h>\r
  12 #include <core/producer/frame/pixel_format.h>\r
  13 #include <core/producer/frame/frame_factory.h>\r
  14 #include <core/mixer/write_frame.h>\r
  15 \r
  16 #include <common/env.h>\r
  17 #include <common/exception/exceptions.h>\r
  18 #include <common/log/log.h>\r
  19 \r
  20 #if defined(_MSC_VER)\r
  21 #pragma warning (push)\r
  22 #pragma warning (disable : 4244)\r
  23 #endif\r
  24 extern "C" \r
  25 {\r
  26         #define __STDC_CONSTANT_MACROS\r
  27         #define __STDC_LIMIT_MACROS\r
  28         #include <libavcodec/avcodec.h>\r
  29         #include <libavformat/avformat.h>\r
  30 }\r
  31 #if defined(_MSC_VER)\r
  32 #pragma warning (pop)\r
  33 #endif\r
  34 \r
  35 #include <boost/foreach.hpp>\r
  36 #include <boost/range/algorithm_ext/push_back.hpp>\r
  37 \r
  38 #include <deque>\r
  39 #include <queue>\r
  40 #include <vector>\r
  41 \r
  42 using namespace caspar::core;\r
  43 \r
  44 namespace caspar {\r
  45 \r
  46 struct display_mode\r
  47 {\r
  48         enum type\r
  49         {\r
  50                 simple,\r
  51                 duplicate,\r
  52                 half,\r
  53                 interlace,\r
  54                 deinterlace_bob,\r
  55                 deinterlace_bob_reinterlace,\r
  56                 deinterlace,\r
  57                 count,\r
  58                 invalid\r
  59         };\r
  60 \r
  61         static std::wstring print(display_mode::type value)\r
  62         {\r
  63                 switch(value)\r
  64                 {\r
  65                         case simple:\r
  66                                 return L"simple";\r
  67                         case duplicate:\r
  68                                 return L"duplicate";\r
  69                         case half:\r
  70                                 return L"half";\r
  71                         case interlace:\r
  72                                 return L"interlace";\r
  73                         case deinterlace_bob:\r
  74                                 return L"deinterlace_bob";\r
  75                         case deinterlace_bob_reinterlace:\r
  76                                 return L"deinterlace_bob_reinterlace";\r
  77                         case deinterlace:\r
  78                                 return L"deinterlace";\r
  79                         default:\r
  80                                 return L"invalid";\r
  81                 }\r
  82         }\r
  83 };\r
  84 \r
  85 display_mode::type get_display_mode(const core::field_mode::type in_mode, double in_fps, const core::field_mode::type out_mode, double out_fps)\r
  86 {               \r
  87         static const auto epsilon = 2.0;\r
  88 \r
  89         if(in_fps < 20.0 || in_fps > 80.0)\r
  90         {\r
  91                 //if(out_mode != core::field_mode::progressive && in_mode == core::field_mode::progressive)\r
  92                 //      return display_mode::interlace;\r
  93                 \r
  94                 if(out_mode == core::field_mode::progressive && in_mode != core::field_mode::progressive)\r
  95                 {\r
  96                         if(in_fps < 35.0)\r
  97                                 return display_mode::deinterlace;\r
  98                         else\r
  99                                 return display_mode::deinterlace_bob;\r
 100                 }\r
 101         }\r
 102 \r
 103         if(std::abs(in_fps - out_fps) < epsilon)\r
 104         {\r
 105                 if(in_mode != core::field_mode::progressive && out_mode == core::field_mode::progressive)\r
 106                         return display_mode::deinterlace;\r
 107                 //else if(in_mode == core::field_mode::progressive && out_mode != core::field_mode::progressive)\r
 108                 //      simple(); // interlace_duplicate();\r
 109                 else\r
 110                         return display_mode::simple;\r
 111         }\r
 112         else if(std::abs(in_fps/2.0 - out_fps) < epsilon)\r
 113         {\r
 114                 if(in_mode != core::field_mode::progressive)\r
 115                         return display_mode::invalid;\r
 116 \r
 117                 if(out_mode != core::field_mode::progressive)\r
 118                         return display_mode::interlace;\r
 119                 else\r
 120                         return display_mode::half;\r
 121         }\r
 122         else if(std::abs(in_fps - out_fps/2.0) < epsilon)\r
 123         {\r
 124                 if(out_mode != core::field_mode::progressive)\r
 125                         return display_mode::invalid;\r
 126 \r
 127                 if(in_mode != core::field_mode::progressive)\r
 128                         return display_mode::deinterlace_bob;\r
 129                 else\r
 130                         return display_mode::duplicate;\r
 131         }\r
 132 \r
 133         return display_mode::invalid;\r
 134 }\r
 135 \r
 136 struct frame_muxer::implementation : boost::noncopyable\r
 137 {       \r
 138         std::deque<std::queue<safe_ptr<write_frame>>>   video_streams_;\r
 139         std::deque<std::vector<int32_t>>                                audio_streams_;\r
 140         std::deque<safe_ptr<basic_frame>>                               frame_buffer_;\r
 141         display_mode::type                                                              display_mode_;\r
 142         const double                                                                    in_fps_;\r
 143         const video_format_desc                                                 format_desc_;\r
 144         bool                                                                                    auto_transcode_;\r
 145 \r
 146         size_t                                                                                  audio_sample_count_;\r
 147         size_t                                                                                  video_frame_count_;\r
 148                 \r
 149         size_t                                                                                  processed_audio_sample_count_;\r
 150         size_t                                                                                  processed_video_frame_count_;\r
 151 \r
 152         filter                                                                                  filter_;\r
 153         safe_ptr<core::frame_factory>                                   frame_factory_;\r
 154                 \r
 155         implementation(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)\r
 156                 : video_streams_(1)\r
 157                 , audio_streams_(1)\r
 158                 , display_mode_(display_mode::invalid)\r
 159                 , in_fps_(in_fps)\r
 160                 , format_desc_(frame_factory->get_video_format_desc())\r
 161                 , auto_transcode_(env::properties().get("configuration.producers.auto-transcode", false))\r
 162                 , audio_sample_count_(0)\r
 163                 , video_frame_count_(0)\r
 164                 , frame_factory_(frame_factory)\r
 165         {\r
 166         }\r
 167 \r
 168         void push(const std::shared_ptr<AVFrame>& video_frame, int hints)\r
 169         {               \r
 170                 if(!video_frame)\r
 171                 {       \r
 172                         CASPAR_LOG(debug) << L"video-frame-count: " << static_cast<float>(video_frame_count_);\r
 173                         video_frame_count_ = 0;\r
 174                         video_streams_.push_back(std::queue<safe_ptr<write_frame>>());\r
 175                         return;\r
 176                 }\r
 177 \r
 178                 if(video_frame->data[0] == nullptr)\r
 179                 {\r
 180                         video_streams_.back().push(make_safe<core::write_frame>(this));\r
 181                         ++video_frame_count_;\r
 182                         display_mode_ = display_mode::simple;\r
 183                         return;\r
 184                 }\r
 185 \r
 186                 if(display_mode_ == display_mode::invalid)\r
 187                 {\r
 188                         if(auto_transcode_)\r
 189                         {\r
 190                                 auto in_mode = get_mode(*video_frame);\r
 191                                 display_mode_ = get_display_mode(in_mode, in_fps_, format_desc_.field_mode, format_desc_.fps);\r
 192                         \r
 193                                 if(display_mode_ == display_mode::simple && in_mode != core::field_mode::progressive && format_desc_.field_mode != core::field_mode::progressive && video_frame->height != static_cast<int>(format_desc_.height))\r
 194                                         display_mode_ = display_mode::deinterlace_bob_reinterlace; // The frame will most likely be scaled, we need to deinterlace->reinterlace \r
 195                                 \r
 196                                 if(display_mode_ == display_mode::deinterlace)\r
 197                                         filter_ = filter(L"YADIF=0:-1");\r
 198                                 else if(display_mode_ == display_mode::deinterlace_bob || display_mode_ == display_mode::deinterlace_bob_reinterlace)\r
 199                                         filter_ = filter(L"YADIF=1:-1");\r
 200                         }\r
 201                         else\r
 202                                 display_mode_ = display_mode::simple;\r
 203 \r
 204                         if(display_mode_ == display_mode::invalid)\r
 205                         {\r
 206                                 CASPAR_LOG(warning) << L"[frame_muxer] Failed to detect display-mode.";\r
 207                                 display_mode_ = display_mode::simple;\r
 208                         }\r
 209 \r
 210                         CASPAR_LOG(info) << "[frame_muxer] " << display_mode::print(display_mode_);\r
 211                 }\r
 212 \r
 213                                 \r
 214                 if(hints & core::frame_producer::ALPHA_HINT)\r
 215                         video_frame->format = make_alpha_format(video_frame->format);\r
 216                 \r
 217                 auto format = video_frame->format;\r
 218                 if(video_frame->format == CASPAR_PIX_FMT_LUMA) // CASPAR_PIX_FMT_LUMA is not valid for filter, change it to GRAY8\r
 219                         video_frame->format = PIX_FMT_GRAY8;\r
 220 \r
 221                 BOOST_FOREACH(auto& av_frame, filter_.execute(video_frame))\r
 222                 {\r
 223                         av_frame->format = format;\r
 224 \r
 225                         auto frame = make_write_frame(this, av_frame, frame_factory_, hints);\r
 226 \r
 227                         // Fix field-order if needed\r
 228                         if(frame->get_type() == core::field_mode::lower && format_desc_.field_mode == core::field_mode::upper)\r
 229                                 frame->get_frame_transform().fill_translation[1] += 1.0/static_cast<double>(format_desc_.height);\r
 230                         else if(frame->get_type() == core::field_mode::upper && format_desc_.field_mode == core::field_mode::lower)\r
 231                                 frame->get_frame_transform().fill_translation[1] -= 1.0/static_cast<double>(format_desc_.height);\r
 232 \r
 233                         video_streams_.back().push(frame);\r
 234                         ++video_frame_count_;\r
 235                 }\r
 236 \r
 237                 if(video_streams_.back().size() > 8)\r
 238                         BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("video-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));\r
 239         }\r
 240 \r
 241         void push(const std::shared_ptr<std::vector<int32_t>>& audio_samples)\r
 242         {\r
 243                 if(!audio_samples)      \r
 244                 {\r
 245                         CASPAR_LOG(debug) << L"audio-chunk-count: " << audio_sample_count_/format_desc_.audio_samples_per_frame;\r
 246                         audio_streams_.push_back(std::vector<int32_t>());\r
 247                         audio_sample_count_ = 0;\r
 248                         return;\r
 249                 }\r
 250 \r
 251                 audio_sample_count_ += audio_samples->size();\r
 252 \r
 253                 boost::range::push_back(audio_streams_.back(), *audio_samples);\r
 254 \r
 255                 if(audio_streams_.back().size() > 8*format_desc_.audio_samples_per_frame)\r
 256                         BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("audio-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));\r
 257         }\r
 258 \r
 259         safe_ptr<basic_frame> pop()\r
 260         {               \r
 261                 auto frame = frame_buffer_.front();\r
 262                 frame_buffer_.pop_front();              \r
 263                 return frame;\r
 264         }\r
 265 \r
 266         size_t size() const\r
 267         {\r
 268                 return frame_buffer_.size();\r
 269         }\r
 270 \r
 271         safe_ptr<core::write_frame> pop_video()\r
 272         {\r
 273                 auto frame = video_streams_.front().front();\r
 274                 video_streams_.front().pop();\r
 275                 \r
 276                 return frame;\r
 277         }\r
 278 \r
 279         std::vector<int32_t> pop_audio()\r
 280         {\r
 281                 CASPAR_VERIFY(audio_streams_.front().size() >= format_desc_.audio_samples_per_frame);\r
 282 \r
 283                 auto begin = audio_streams_.front().begin();\r
 284                 auto end   = begin + format_desc_.audio_samples_per_frame;\r
 285 \r
 286                 auto samples = std::vector<int32_t>(begin, end);\r
 287                 audio_streams_.front().erase(begin, end);\r
 288 \r
 289                 return samples;\r
 290         }\r
 291         \r
 292         bool video_ready() const\r
 293         {               \r
 294                 return video_streams_.size() > 1 || (video_streams_.size() >= audio_streams_.size() && video_ready2());\r
 295         }\r
 296         \r
 297         bool audio_ready() const\r
 298         {\r
 299                 return audio_streams_.size() > 1 || (audio_streams_.size() >= video_streams_.size() && audio_ready2());\r
 300         }\r
 301 \r
 302         bool video_ready2() const\r
 303         {               \r
 304                 switch(display_mode_)\r
 305                 {\r
 306                 case display_mode::deinterlace_bob_reinterlace:                                 \r
 307                 case display_mode::interlace:                                   \r
 308                         return video_streams_.front().size() >= 2;\r
 309                 default:                                                                                \r
 310                         return !video_streams_.front().empty();\r
 311                 }\r
 312         }\r
 313         \r
 314         bool audio_ready2() const\r
 315         {\r
 316                 switch(display_mode_)\r
 317                 {\r
 318                 case display_mode::duplicate:                                   \r
 319                         return audio_streams_.front().size()/2 >= format_desc_.audio_samples_per_frame;\r
 320                 default:                                                                                \r
 321                         return audio_streams_.front().size() >= format_desc_.audio_samples_per_frame;\r
 322                 }\r
 323         }\r
 324                 \r
 325         void commit()\r
 326         {\r
 327                 if(video_streams_.size() > 1 && audio_streams_.size() > 1 && (!video_ready2() || !audio_ready2()))\r
 328                 {\r
 329                         if(!video_streams_.front().empty() || !audio_streams_.front().empty())\r
 330                                 CASPAR_LOG(debug) << "Truncating: " << video_streams_.front().size() << L" video-frames, " << audio_streams_.front().size() << L" audio-samples.";\r
 331 \r
 332                         video_streams_.pop_front();\r
 333                         audio_streams_.pop_front();\r
 334                 }\r
 335 \r
 336                 if(!video_ready2() || !audio_ready2())\r
 337                         return;\r
 338                 \r
 339                 switch(display_mode_)\r
 340                 {\r
 341                 case display_mode::simple:                                              return simple(frame_buffer_);\r
 342                 case display_mode::duplicate:                                   return duplicate(frame_buffer_);\r
 343                 case display_mode::half:                                                return half(frame_buffer_);\r
 344                 case display_mode::interlace:                                   return interlace(frame_buffer_);\r
 345                 case display_mode::deinterlace_bob:                             return simple(frame_buffer_);\r
 346                 case display_mode::deinterlace_bob_reinterlace: return interlace(frame_buffer_);\r
 347                 case display_mode::deinterlace:                                 return simple(frame_buffer_);\r
 348                 default:                                                                                BOOST_THROW_EXCEPTION(invalid_operation() << msg_info("invalid display-mode"));\r
 349                 }\r
 350         }\r
 351         \r
 352         void simple(std::deque<safe_ptr<basic_frame>>& dest)\r
 353         {               \r
 354                 auto frame1 = pop_video();\r
 355                 frame1->audio_data() = pop_audio();\r
 356 \r
 357                 dest.push_back(frame1);         \r
 358         }\r
 359 \r
 360         void duplicate(std::deque<safe_ptr<basic_frame>>& dest)\r
 361         {               \r
 362                 auto frame = pop_video();\r
 363 \r
 364                 auto frame1 = make_safe<core::write_frame>(*frame); // make a copy\r
 365                 frame1->audio_data() = pop_audio();\r
 366 \r
 367                 auto frame2 = frame;\r
 368                 frame2->audio_data() = pop_audio();\r
 369 \r
 370                 dest.push_back(frame1);\r
 371                 dest.push_back(frame2);\r
 372         }\r
 373 \r
 374         void half(std::deque<safe_ptr<basic_frame>>& dest)\r
 375         {                                                       \r
 376                 auto frame1 = pop_video();\r
 377                 frame1->audio_data() = pop_audio();\r
 378                                 \r
 379                 video_streams_.front().pop(); // Throw away\r
 380 \r
 381                 dest.push_back(frame1);\r
 382         }\r
 383         \r
 384         void interlace(std::deque<safe_ptr<basic_frame>>& dest)\r
 385         {                               \r
 386                 auto frame1 = pop_video();\r
 387                 frame1->audio_data() = pop_audio();\r
 388                                 \r
 389                 auto frame2 = pop_video();\r
 390 \r
 391                 dest.push_back(core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode));          \r
 392         }\r
 393         \r
 394         int64_t calc_nb_frames(int64_t nb_frames) const\r
 395         {\r
 396                 switch(display_mode_)\r
 397                 {\r
 398                 case display_mode::interlace:\r
 399                 case display_mode::half:\r
 400                         return nb_frames/2;\r
 401                 case display_mode::duplicate:\r
 402                 case display_mode::deinterlace_bob:\r
 403                         return nb_frames*2;\r
 404                 default:\r
 405                         return nb_frames;\r
 406                 }\r
 407         }\r
 408 };\r
 409 \r
 410 frame_muxer::frame_muxer(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)\r
 411         : impl_(new implementation(in_fps, frame_factory)){}\r
 412 void frame_muxer::push(const std::shared_ptr<AVFrame>& video_frame, int hints){impl_->push(video_frame, hints);}\r
 413 void frame_muxer::push(const std::shared_ptr<std::vector<int32_t>>& audio_samples){return impl_->push(audio_samples);}\r
 414 void frame_muxer::commit(){impl_->commit();}\r
 415 safe_ptr<basic_frame> frame_muxer::pop(){return impl_->pop();}\r
 416 size_t frame_muxer::size() const {return impl_->size();}\r
 417 bool frame_muxer::empty() const {return impl_->size() == 0;}\r
 418 bool frame_muxer::video_ready() const{return impl_->video_ready();}\r
 419 bool frame_muxer::audio_ready() const{return impl_->audio_ready();}\r
 420 int64_t frame_muxer::calc_nb_frames(int64_t nb_frames) const {return impl_->calc_nb_frames(nb_frames);}\r
 421 \r
 422 }